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PTFE Multi-Channel Gradient Valves

NIV series multi-channel gradient valves feature multiple 2-way, normally-closed PTFE media isolation valves connected around a central body. This unique design provides significant reduction in internal volume with enhanced mixing capabilities. Each actuator operates independently, allowing for flow of various media to be mixed or for one media to be split into multiple streams. These multi-channel gradient mixing valves are useful for solvent selection, stream splitting, flushing, and other automated applications.

Multi-Channel Gradient Valve

PTFE Multi-Channel Gradient
Isolation Valve Features:

  • Individually controlled flow paths
  • Bidirectional
  • Low power consumption
  • Compact, lightweight design
  • Minimal dead volume
  • All wetted areas PTFE
  • Ideal for gradient, mixing, and diverting applications
  • Compatible with corrosive and aggressive fluids
  • Variety of multi-valve configurations
  • Equal pressure drop, response time and internal volumes
  • High cycle life
  • Fast response time
  • Proudly made in the U.S.A.

Valve Type: 2-way Normally-Closed
Medium: Air, water, gas or compatible fluids
Temperature Range: 0 to 158°F (70°C)
Operating Pressure: Vacuum to 30 psig (2 bar)
Flow: 6 to 58 l/min @ 30 psig
Wattage: 1.0 to 7.2 watts
Response Time: 5 to 20 ms
Connectors: 18" wire leads
Voltage: 12 or 24 VDC
Ports: 1/4-28 UNF or 1/8 NPS
Mount: #4-40 (metric available)
Wetted Materials: PTFE standard
CE, RoHS Compliant
ISO 9001 Certified

A unique feature of the NIV series is the one-piece valve stem that functions as a sealing membrane while also supporting and centralizing the poppet in the seating area. This multifunctional diaphragm/poppet results in a simplified design with fewer parts (only two for the 2-way and three for the 3-way), longer life and minimal dead volume. 

Industries and applications that commonly use these types of valves to isolate gas or liquid include: drug dispensing, laboratory equipment, analytical, chemical analysis, sampling, life science/biotech, genetic research, gas chromatography, spectrometry, DNA synthesizing, blood analyzing, printing, diagnostic equipment, fermentation, water treatment and more.

Click here to learn more about the features and benefits
of Clippard's NIV series PTFE media isolation valves

Model Flow @ 30 psig Orifice Ports Model 12 VDC 24 VDC
2 Valves 6 l/min 0.040" 1/4-28 UNF NR1 NR1-2-12-G2 NR1-2-24-G2
16 l/min 0.062" 1/4-28 UNF NR2 NR2-2-12-G2 NR2-2-24-G2
38 l/min 0.093" 1/4-28 UNF NR3 NR3-2-12-G2 NR3-2-24-G2
58 l/min 0.156" 1/8 NPS NR4 NR4-2-12-G2 NR4-2-24-G2

3 Valves 6 l/min 0.040" 1/4-28 UNF NR1 NR1-2-12-G3 NR1-2-24-G3
16 l/min 0.062" 1/4-28 UNF NR2 NR2-2-12-G3 NR2-2-24-G3
38 l/min 0.093" 1/4-28 UNF NR3 NR3-2-12-G3 NR3-2-24-G3
58 l/min 0.156" 1/8 NPS NR4 NR4-2-12-G3 NR4-2-24-G3

4 Valves 6 l/min 0.040" 1/4-28 UNF NR1 NR1-2-12-G4 NR1-2-24-G4
16 l/min 0.062" 1/4-28 UNF NR2 NR2-2-12-G4 NR2-2-24-G4
38 l/min 0.093" 1/4-28 UNF NR3 NR3-2-12-G4 NR3-2-24-G4
58 l/min 0.156" 1/8 NPS NR4 NR4-2-12-G4 NR4-2-24-G4

6 Valves 6 l/min 0.040" 1/4-28 UNF NR1 NR1-2-12-G6 NR1-2-24-G6
16 l/min 0.062" 1/4-28 UNF NR2 NR2-2-12-G6 NR2-2-24-G6
38 l/min 0.093" 1/4-28 UNF NR3 NR3-2-12-G6 NR3-2-24-G6
58 l/min 0.156" 1/8 NPS NR4 NR4-2-12-G6 NR4-2-24-G6

Related Content:

Q&A with Miniature Pinch & Media Isolation Valve Expert
Using Multi-channel Gradient Valves to Mix Corrosive Media
Video: What Is a Gradient Valve?


Related Products:

NIV Series Solenoid-Operated PTFE Media Isolation Valves